Yes about $200. I might have one for sale if I decide to take off prior to sale of my sled. Would let it go for $135 shipped. PM me your info and I will let you know in about a week.
You can buy just the Y-pipe, but what model is it going on? If your using it on a Rev 04-06, it should work. 07 800r? If your thinking of using it on a XP with your stock pipe, I don't think it going to fit right. SLP's Y is longer than the OEM.
I wouldnt just do the Y pipe only. I Put the Y pipe, pipe, and super Q can on my 09 xp 163. There is a change for sure. You dont need to re-jet with them. Plus the sound is awsome. The only complaint is the spring noise. Just silcone fill them and your good to go.
I have v-3 reeds, slp y-pipe / high volume air intake , and can. It ran well prior to y-pipe but mid range is more crisp and didn't seem to loose R's in the steep and deep stuff as it did before. Maybe loose 500 rpms rather than 1500. It is for an '07 800 R.